Mixed number form :- 2 9/40
Decimal :2.22
Exact form :89/40
Y = 2x + 7
Function notation
f(x) = 2x + 7
f(-9) means x is -9
Replace x with -9 and solve:
2/3(-9) - 6
Simplify:
-6 - 6 = -12
f(-9) = -12
Answer:
c
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
Use the pythagorean theorem and solve for a:
a² + b² = c²
a² + 21² = 35²
a² + 441 = 1225
a² = 784
a = 28
So, the missing length is 28.